Baltimore City State's Attorney Marilyn Mosby announced last week that her office will put Michael Johnson on trial again on charges of second-degree murder in Barnes' death.

Johnson is scheduled to be arraigned on Feb. 26.

A judge had dropped charges against Johnson last month. The judge in the case ruled there was insufficient evidence for the second murder trial against Johnson to continue, so he was acquitted and set free on Jan. 20.

Mosby told reporters that the judge in Johnson's last trial didn't have jurisdiction to grant a motion for judgment of acquittal after he had already granted a different motion for a mistrial and dismissed the jury.

Barnes' case made national news after she disappeared while visiting her sister in Baltimore in December 2010. The teenager's body was found in April 2011 in the waters of the Susquehanna River in Cecil County.

Investigators said Johnson, who was the ex-boyfriend of Barnes' sister, was the last person to see the teen alive. He was charged with her murder a year later.

The second trial ended in a mistrial in December when prosecutors twice played a wiretap recording of a conversation that Johnson had with his older brother. It contained material that the judge had ordered be removed.